Arson, Murder, and Jaywalking - The heroes have landed on the City of OC, subverted the Mary Sue's intimidation power, easily destroyed Marly-dono's prospective army, and are about to storm his lair. "Agh! And they're throwing their unconscious bodies into my beautiful rosebushes! THOSE WERE RAISED BY HAND, YOU BASTARDS!"
"Organization XIII was not a nice group of sort-of-kind-of-former people. They toyed with minds, they twisted relationships, they used lives as tools, they manipulated innocents, they spread chaos, they captured hearts, they lengthened the lines at the DMV and they commanded Heartless."
Bowdlerise - Parodied with the Gutless' name. Vexen "was going to call them the Nutless, but Disney put their foot down. Some nonsense about not scaring the children and lawsuits, something about a VHScover or something."
Bread, Eggs, Milk, Squick - "The Saïx we recruited is stoic, collected, and mildly psychopathic with a sadistic twist."
“Nevertheless,” Lexaeus still had his fierce gaze locked on the imposter Nobody as he pulled his tomahawk up out of the ground. “Larxene is our comrade-in-arms and we will not stand for what you have done to her. In the name of the real Organization XIII—prepare to die.”
“Don’t be so worried, gentlemen. We can utilize a Gelatinous Confectionary Transportation Vehicle.”
“You mean a gummi ship,” Lexaeus nudged him in the elbow.
Seven Minute Lull - In Destiny Sanctuary Peak High School Academy Grammar School, Riku accidentally flubs and reveals his bet with Sora after a song finishes in a party. Melodrama ensues.
[Sakura-Rose:]“You’ll never defeat me, you hideous beast, because I represent all that is pure and good and light in the world, and YOU are an evil creature with no heart and I have a heart and it holds nothing but love for ALL LIVING THINGS! And you’ll never be able to scare me, either! My will is as strong as stone!”
“Really?” Lexaeus asked lamely, and with the slightest movement of his hand, Sakura-Rose was crushed to death beneath two tons of irony and a gigantic summoned slab of rock.
Also twice with Jeffiroth: the first time with a 'get on with it' and the second by snapping his Badass Locks off.
Significant Anagram - Xuxastell, which, as Xaldin quickly figures out, unscrambles to "AxelSlut," or "Axel Lust," if you insist.
"Let's go through the checklist," Xaldin suggested, one eyebrow raised high over the other as he examined their surroundings quizzically. "Dark skies?" "Check," Lexaeus nodded. "Foreboding, overly complicated architecture and/or some kind of ruins?" "Indeed," Vexen confirmed. "Epic-sounding technopop and/or metal music in the background?" "Yep." "Cryptic clues and references to the end of things, and/or excessively pretentious area names?" "We have stepped into the Haven of Wasted Epiphanies," Vexen announced, reading from a convenient nearby sign. "Up ahead is the Village of Twisted Thoughts and the Subdivision of Broken Endings. Triple check." "Yes. I thought so," Xaldin sighed. "This is a Final World if ever I saw one."
Title Drop - “Nine Organization members, whole and lacking spines, shouted in unison.”
Also (kinda) in chapter 10:
It was unfortunate for the Grand Master Fangirl that this sickly little idea was not any ordinary idea—it was a being that lacked a brain, a heart, a spine and most importantly, it lacked… you know.